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This paper presents a new algorithm for the position sensorless vector control of the Interior Permanent Magnets Synchronous Motors (IPMSM), which is based on the well-known approach for the Permanent Magnets Synchronous Motors (PMSM), when rotor position and speed information is obtained by using current error between actual and estimated currents. Estimated current is calculated using motor model,...
In this paper, the initial pole-position estimation of a surface (non-salient) permanent magnet synchronous motor is analysed mathematically, and more accurately improved for SPMSM sensorless servo drive by the absolute accumulation (or integral) of torque-component currents. This algorithm is well carried out under the full closed loop position control without any pole sensors and is completely insensitive...
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